feat!: improve CLI structure, add new commands

This splits most CLI/IPC commands into two categories:

- `var` for ironvars
- `bar` for controlling individual bars.

It also introduces more commands for visibility, as well as breaking existing ones.

New commands:

- `show`
- `hide`
- `toggle_visible`
- `set_popup_visible`
- `get_popup_visible`

Lastly, the implementation of some existing commands has been improved.

BREAKING CHANGE: All IPC commands have changed. Namely, `type` has been changed to `command`, and bar/var related commands are now under a `subcommand`. The full spec can be found on the wiki.

BREAKING CHANGE: Several CLI commands are now located under the `var` and `bar` categories. Usage of any commands to get/set Ironvars or control bar visibility will need to be updated.

BREAKING CHANGE: The `open_popup` and `close_popup` IPC commands are now called `show_popup` and `hide_popup` respectively.

BREAKING CHANGE: The popup `name` argument has been renamed to `widget_name` on all IPC commands.

BREAKING CHANGE: The `set-visibility` CLI command now takes a `true`/`false` positional argument in place of the `-v` flag.

BREAKING CHANGE: `ok_value` responses will no longer print `ok` as the first line when using the CLI

src/ipc/mod.rs

@@ -6,7 +6,7 @@ mod server;
 use std::path::{Path, PathBuf};
 use tracing::warn;
 
-pub use commands::Command;
+pub use commands::*;
 pub use responses::Response;
 
 #[derive(Debug)]